Tackling the problem

How to play

Players pass dominoes to other team members in order to help one another complete their doughnut.

Rules

No one can talk or give non-verbal signals to other members of the team.

Each member of the team starts with four dominoes in front of them.

The dominoes in front of each person should be visible to everyone.

Team members can only give dominoes; they cannot take dominoes from someone else.

Each team member must have at least two dominoes in front of them at all times.

Use an observer to check that the team obeys the rules and to keep a record of when members of the team help someone else (rather than, for example, when they just pass a piece on without looking at what the other person or team actually needs).

Observers can place one of the hint cards in the middle, if after a period of five minutes the team is not making any progress.

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities
can be found here.